Question

Give the classification of the following alcohols as to primary, secondary, or tertiary.     1.                  (CH3)3-C- OH                 2.                    CH3- CH2-CH2-CH2-OH                        3.                   CH3-(CH2)2-CH -OH      4.                 CH3- CH2-OH      5.                  (CH3)2-CH -OH​

Answer 1

First one

• Three methyl bonds attached to Carbon atom
• 3degree Carbon so tertiary alcohol.

#2

No substituents

• 1 degree carbon so primary alcohol

#3

2 CH_2 attached

• 2degree carbon so secondary alcohol

#4

• 1 degree or primary alcohol

#5

2 methyls

• 2 degree carbon so secondary alcohol

Answer 2

First one

Three methyl bonds attached to Carbon atom

3degree Carbon so tertiary alcohol.

#2

No substituents

1 degree carbon so primary alcohol

#3

2 CH_2 attached

2degree carbon so secondary alcohol

#4

1 degree or primary alcohol

#5

2 methyls

2 degree carbon so secondary alcohol